Is it more gay or more straight to watch shemale/female porn?
I identify as straight male and I watch porn with a shemale having sex with straight girl and I consider it being straight porn.
Think of it that way from a straight male's perspective:
Normal porn is 1 male 1 female, enjoying it is 50% gay since the dude contributed to your sexual pleasure. However, enjoying porn with a shemale (female with dick) having sex with a straight female is only 25% gay since it is basically straight porn (dick+vagina) but without a dude.
In comparison, enjoying lesbian porn is 50% gay(you are not gay buy the females are); enjoying gay porn is 100% gay; enjoying shemale on shemale porn is 200% gay (it is lesbian and gay at the same time).
*Note: I do not mean that porn defines your sexual orientation, it's an example.